GB1380458A - Method for modifying plastic surfaces - Google Patents

Method for modifying plastic surfaces

Info

Publication number
GB1380458A
GB1380458A GB3701872A GB3701872A GB1380458A GB 1380458 A GB1380458 A GB 1380458A GB 3701872 A GB3701872 A GB 3701872A GB 3701872 A GB3701872 A GB 3701872A GB 1380458 A GB1380458 A GB 1380458A
Authority
GB
United Kingdom
Prior art keywords
zone
vapours
solvent
saturated
coating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3701872A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Publication of GB1380458A publication Critical patent/GB1380458A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
    • B05D3/0466—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being a non-reacting gas
    • B05D3/0473—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being a non-reacting gas for heating, e.g. vapour heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/009—After-treatment of articles without altering their shape; Apparatus therefor using gases without chemical reaction
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/02—Chemical treatment or coating of shaped articles made of macromolecular substances with solvents, e.g. swelling agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

1380458 Treating polymer surfaces DOW CHEMICAL CO 8 Aug 1972 [9 Aug 1971] 37018/72 Heading B2E A method for reflowing plastic surfaces comprising introducing an object which is made of plastic material or which has a plastic surface into a first zone of saturated vapours of the solvent, maintaining the object therein for a period of time sufficient for at least a sufficient amount of solvent to enable the surface to flow to be absorbed into the plastic surface, withdrawing the object from the zone and introducing it into a second zone of superheated vapours of the same solvent as is utilised in the first zone and maintaining the object in the second zone for a period of time sufficient at least to raise the surface temperature of the object to the temperature of the superheated vapours, withdrawing the object from the second zone into a third zone of saturated vapours of the same solvent and without delay removing the object into the ambient atmosphere. The process removes surface blemishes. In an embodiment there is a method of coating which comprises introducing the objected to be coated into the saturated vapour of the solvent, maintaining the object therein for a period of time sufficient to raise its surface temperature to the boiling point of the solvent from which the coating is to be applied, either withdrawing the object from the saturated vapours and introducing it into the superheated vapours of the same solvent as the solvent of the saturated vapours and while therein applying a solvent-soluble plastic coating to the object, or applying a solvent-soluble plastic coating to the object whilst in the saturated vapours of the solvent ducing the object to be coated into the superheated vapours of the same solvent, in either case maintaining the coated object in the superheated vapours for a period of time sufficient for substantially all the coating solvent to be vapourised, withdrawing the object from the superheated zone and treating it in the manner defined above as a method of reflowing plastic surfaces. Suitable solvents are chlorinated hydrocarbon solvents, fluorinated hydrocarbon solvents, hydrocarbon solvents. Suitable examples of dress materials are given. The plastics may be an epoxide, acrylate, urethane, polyester, polyether, natural resin or rosin. In the drawing is shown an apparatus for carrying out a coating and reflow process. The zone A contains saturated solvent vapours which raise the surface of a substrate to the atmospheric volume of the solvent. In the intermediate zone the substarte is painted or coated by spraying, padding or dipping and this zone may be either a saturated or superheated vapour zone. The object consists of zone B containing superheated vapours which cause the coating vapours to be driven when the coating dries. The object then passes to zone C containing saturated vapours which reflow the coating before passing to zone D containing superheated vapours which cause the vapours absorbed in the reflow process to be driven off and finally in the zone E containing saturated vapours as a vapour lock. In the Examples a metal panel is coated with an acrylic paint containing titanium dioxide in a vehicle of methylene chloride.
GB3701872A 1971-08-09 1972-08-08 Method for modifying plastic surfaces Expired GB1380458A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17010771A 1971-08-09 1971-08-09

Publications (1)

Publication Number Publication Date
GB1380458A true GB1380458A (en) 1975-01-15

Family

ID=22618577

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3701872A Expired GB1380458A (en) 1971-08-09 1972-08-08 Method for modifying plastic surfaces

Country Status (12)

Country Link
US (1) US3737499A (en)
JP (1) JPS4826255A (en)
BE (1) BE787366A (en)
BR (1) BR7205379D0 (en)
CA (1) CA986675A (en)
CH (1) CH553639A (en)
DE (1) DE2239245A1 (en)
ES (1) ES405624A1 (en)
FR (1) FR2149800A5 (en)
GB (1) GB1380458A (en)
IT (1) IT961897B (en)
NL (1) NL7210879A (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976524A (en) * 1974-06-17 1976-08-24 Ibm Corporation Planarization of integrated circuit surfaces through selective photoresist masking
SE390119B (en) * 1975-04-11 1976-12-06 Bofors Ab WAY TO COAT FOREMAL WITH WATER-DISPERGED POLYMER DISPENSIONS, WHICH ARE DRYED TO POWDER AND EXPOSED TO COOLESCENCE SOLVENTS
US4022932A (en) * 1975-06-09 1977-05-10 International Business Machines Corporation Resist reflow method for making submicron patterned resist masks
CA1090975A (en) * 1976-07-21 1980-12-09 Manfred Stuart Refinishing of the surfaces of bodies of a thermoplastic resin
US4115601A (en) * 1977-07-01 1978-09-19 Bell Telephone Laboratories, Incorporated Flexible circuit reflow soldering process and machine
US4256512A (en) * 1977-07-01 1981-03-17 Bell Telephone Laboratories, Incorporated Flexible circuit reflow soldering machine
US4247580A (en) * 1978-02-06 1981-01-27 Stuart Plastics Ltd. Refinishing of the surfaces of bodies of a thermoplastic resin
CA1267512A (en) * 1985-09-04 1990-04-10 Otto Wichterle Method for the preparation of precast elements for the production of contact lenses by mechanical working
DE3840269A1 (en) * 1988-11-30 1990-05-31 Messer Griesheim Gmbh METHOD FOR PRODUCING SMOOTH SURFACES ON OBJECTS FROM POLYMERS OF ETHYLENE, PROPYLENE, BUTADIENE AND POLYSTYRENE
US5147724A (en) * 1988-11-30 1992-09-15 Mg Industries Method for producing smooth surfaces on plastics
JPH03113414U (en) * 1990-03-01 1991-11-20
JPH06128398A (en) * 1992-10-16 1994-05-10 Ulvac Japan Ltd Surface smoothening of plastic material
US5334335A (en) * 1992-10-19 1994-08-02 Clearfix Corporation Compositions and methods for repairing and removing scratches and other imperfections from plastic surfaces
US5448838A (en) * 1993-09-14 1995-09-12 Hess, Inc. Apparatus for restoring plastic surfaces
US6120847A (en) * 1999-01-08 2000-09-19 Scimed Life Systems, Inc. Surface treatment method for stent coating
KR100938451B1 (en) * 2002-04-17 2010-01-25 스트래터시스,인코포레이티드 Smoothing method for layered deposition modeling
CN101287574B (en) * 2005-10-13 2011-05-11 斯特拉塔西斯公司 Trading method for constructing three-dimensional objects
US8765045B2 (en) * 2007-01-12 2014-07-01 Stratasys, Inc. Surface-treatment method for rapid-manufactured three-dimensional objects
US8075300B2 (en) * 2008-06-30 2011-12-13 Stratasys, Inc. Vapor smoothing surface finishing system
DE102018121915B3 (en) * 2018-09-07 2020-02-13 Dyemansion Gmbh Process for the surface treatment of molded parts
DE102019101351B4 (en) * 2019-01-18 2021-01-07 Dyemansion Gmbh Device and method for surface smoothing of additively manufactured molded parts made of plastic
EP3825108A1 (en) * 2019-11-20 2021-05-26 WashTec Holding GmbH Method for treating a plastic molded article
US11407147B1 (en) 2020-06-10 2022-08-09 Entropie Systems, Inc. Vapor condensation thermoplastic parts finishing

Also Published As

Publication number Publication date
ES405624A1 (en) 1976-01-16
CA986675A (en) 1976-04-06
US3737499A (en) 1973-06-05
BR7205379D0 (en) 1973-06-14
FR2149800A5 (en) 1973-03-30
CH553639A (en) 1974-09-13
IT961897B (en) 1973-12-10
NL7210879A (en) 1973-02-13
JPS4826255A (en) 1973-04-06
DE2239245A1 (en) 1973-02-22
BE787366A (en) 1973-02-09

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees